Bed



FIG. 1 is a front perspective view of a bed, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof, with the left side being a mirror image thereof; and,

FIG. 4 is a top view thereof.

The broken lines illustrate portions of the bed that form no part of the claimed design. 

CLAIM I claim the ornamental design for a bed, as shown and described. 